4-(4-Butoxybenzoyl)-3-hydroxy-5-(4-isopropylphenyl)-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one CAS 609795-69-9
| CAS No. | 609795-69-9 |
| Molecular Formula | C27H29N3O4S |
| Molecular Weight | 491.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(4-Butoxybenzoyl)-3-hydroxy-5-(4-isopropylphenyl)-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one (CAS 609795-69-9), molecular formula C27H29N3O4S and molecular weight 491.60 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 4-(4-Butoxybenzoyl)-3-hydroxy-5-(4-isopropylphenyl)-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 491.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C27H29N3O4S |
| Molecular Weight | 491.60 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Butoxybenzoyl Standards
- 4-(4-Butoxybenzoyl)-5-(4-ethoxyphenyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one (CAS 609795-75-7)
- 4-(4-Butoxybenzoyl)-5-(3-chlorophenyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one (CAS 609795-68-8)
- 4-(4-Butoxybenzoyl)-5-(4-chlorophenyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one (CAS 609795-77-9)
- 4-(4-Butoxybenzoyl)-5-(4-ethylphenyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one (CAS 609796-74-9)
- 4-((4-Butoxybenzoyl)oxy)phenyl (4-butoxyphenyl) oxalate (CAS 108802-34-2)
- 2,5-Bis((4-butoxybenzoyl)oxy)benzoic acid (CAS 205689-93-6)
- Methyl 2-(3-(4-butoxybenzoyl)-4-hydroxy-5-oxo-2-(pyridin-3-yl)-2,5-dihydro-1H-pyrrol-1-yl)-4-methylthiazole-5-carboxylate (CAS 617695-39-3)
- 4-(4-Butoxybenzoyl)-5-(2-fluorophenyl)-3-hydroxy-1-(5-methyl-1,3,4-thiadiazol-2-yl)-1H-pyrrol-2(5H)-one (CAS 609795-73-5)
Recommended Standards
- (3-Amino-4-(4-methoxyphenyl)-6-phenylthieno[2,3-b]pyridin-2-yl)(3,4-dihydroquinolin-1(2H)-yl)methanone (CAS 332101-74-3)
- Fmoc-S-4-methoxybenzyl-L-penicillamine (CAS 387868-24-8)
- (+)-Biotin-PEG4-acid (CAS 721431-18-1)
- 1-Naphthalenylsulfonyl-Ile-Trp-aldehyde (CAS 161709-56-4)
- Ethyl 2-(6,7-dimethoxy-4-oxoquinolin-1(4H)-yl)acetate (CAS 1279218-20-0)
- 1-(3-Aminophenyl)-2-bromoethan-1-one (CAS 57946-55-1)
- 5,8-Dimethoxy-4-methylquinolin-2-ol (CAS 23947-41-3)
- (S)-Fmoc-2-Aminooct-7-ynoic acid (CAS 1097192-06-7)
- 3-((4-Chlorobenzyl)thio)-5,6-dihydrobenzo[h]cinnoline (CAS 478047-91-5)
- Ethyl 4-((4-chlorobenzyl)oxy)-6-methyl-4a,8a-dihydroquinoline-3-carboxylate (CAS 866155-82-0)
- 2-Keto molinate (CAS 24928-89-0)
- 7-Hydroxycoumarin sulfate (CAS 69526-88-1)
- Pomalidomide Impurity 11 (CAS 19171-18-7)
- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
Why CATO?
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